# frozen_string_literal: true

describe 'Ridgepole::Client#diff -> migrate' do
  context 'when add column' do
    let(:actual_dsl) do
      erbh(<<-ERB)
        create_table "clubs", force: :cascade do |t|
          t.string "name", default: "", null: false
          t.index ["name"], name: "idx_name", unique: true
        end

        create_table "departments", primary_key: "dept_no", force: :cascade do |t|
          t.string "dept_name", limit: 40, null: false
          t.index ["dept_name"], name: "dept_name", unique: true
        end

        create_table "dept_emp", id: false, force: :cascade do |t|
          t.integer "emp_no", null: false
          t.string  "dept_no", limit: 4, null: false
          t.date    "from_date", null: false
          t.date    "to_date", null: false
          t.index ["dept_no"], name: "dept_no"
          t.index ["emp_no"], name: "emp_no"
        end

        create_table "dept_manager", id: false, force: :cascade do |t|
          t.string  "dept_no", limit: 4, null: false
          t.integer "emp_no", null: false
          t.date    "from_date", null: false
          t.date    "to_date", null: false
          t.index ["dept_no"], name: "dept_no"
          t.index ["emp_no"], name: "emp_no"
        end

        create_table "employee_clubs", force: :cascade do |t|
          t.integer "emp_no", null: false
          t.integer "club_id", null: false
          t.index ["emp_no", "club_id"], name: "idx_emp_no_club_id"
        end

        create_table "employees", primary_key: "emp_no", force: :cascade do |t|
          t.date   "birth_date", null: false
          t.string "first_name", limit: 14, null: false
          t.string "last_name", limit: 16, null: false
          t.string "gender", limit: 1, null: false
          t.date   "hire_date", null: false
        end

        create_table "salaries", id: false, force: :cascade do |t|
          t.integer "emp_no", null: false
          t.integer "salary", null: false
          t.date    "from_date", null: false
          t.date    "to_date", null: false
          t.index ["emp_no"], name: "emp_no"
        end

        create_table "titles", id: false, force: :cascade do |t|
          t.integer "emp_no", null: false
          t.string  "title", limit: 50, null: false
          t.date    "from_date", null: false
          t.date    "to_date"
          t.index ["emp_no"], name: "emp_no"
        end
      ERB
    end

    let(:expected_dsl) do
      erbh(<<-ERB)
        create_table "clubs", force: :cascade do |t|
          t.string "name", default: "", null: false
          t.index ["name"], name: "idx_name", unique: true
        end

        create_table "departments", primary_key: "dept_no", force: :cascade do |t|
          t.string "dept_name", limit: 40, null: false
          t.index ["dept_name"], name: "dept_name", unique: true
        end

        create_table "dept_emp", id: false, force: :cascade do |t|
          t.integer "emp_no", null: false
          t.string  "dept_no", limit: 4, null: false
          t.date    "from_date", null: false
          t.date    "to_date", null: false
          t.index ["dept_no"], name: "dept_no"
          t.index ["emp_no"], name: "emp_no"
        end

        create_table "dept_manager", id: false, force: :cascade do |t|
          t.string  "dept_no", limit: 4, null: false
          t.integer "emp_no", null: false
          t.date    "from_date", null: false
          t.date    "to_date", null: false
          t.index ["dept_no"], name: "dept_no"
          t.index ["emp_no"], name: "emp_no"
        end

        create_table "employee_clubs", force: :cascade do |t|
          t.integer "emp_no", null: false
          t.integer "club_id", null: false
          t.string  "any_col", null: false
          t.index ["emp_no", "club_id"], name: "idx_emp_no_club_id"
        end

        create_table "employees", primary_key: "emp_no", force: :cascade do |t|
          t.date    "birth_date", null: false
          t.string  "first_name", limit: 14, null: false
          t.string  "last_name", limit: 16, null: false
          t.string  "gender", limit: 1, null: false
          t.date    "hire_date", null: false
          t.integer "age", null: false
          t.date    "updated_at"
        end

        create_table "salaries", id: false, force: :cascade do |t|
          t.integer "emp_no", null: false
          t.integer "salary", null: false
          t.date    "from_date", null: false
          t.date    "to_date", null: false
          t.index ["emp_no"], name: "emp_no"
        end

        create_table "titles", id: false, force: :cascade do |t|
          t.integer "emp_no", null: false
          t.string  "title", limit: 50, null: false
          t.date    "from_date", null: false
          t.date    "to_date"
          t.index ["emp_no"], name: "emp_no"
        end
      ERB
    end

    before { subject.diff(actual_dsl).migrate }
    subject { client }

    it {
      delta = subject.diff(expected_dsl)
      expect(delta.differ?).to be_truthy
      expect(subject.dump).to match_ruby actual_dsl
      delta.migrate(alter_extra: 'FORCE')
      expect(subject.dump).to match_ruby expected_dsl
    }
  end

  context 'when add index' do
    let(:actual_dsl) do
      erbh(<<-ERB)
        create_table "employees", primary_key: "emp_no", force: :cascade do |t|
          t.date   "birth_date", null: false
          t.string "first_name", limit: 14, null: false
          t.string "last_name", limit: 16, null: false
          t.string "gender", limit: 1, null: false
          t.date   "hire_date", null: false
        end
      ERB
    end

    let(:expected_dsl) do
      erbh(<<-ERB)
        create_table "employees", primary_key: "emp_no", force: :cascade do |t|
          t.date   "birth_date", null: false
          t.string "first_name", limit: 14, null: false
          t.string "last_name", limit: 16, null: false
          t.string "gender", limit: 1, null: false
          t.date   "hire_date", null: false
          t.index  ["first_name"], name: "idx_first_name"
        end
      ERB
    end

    let(:alter_extra) { 'LOCK=DEFAULT, ALGORITHM=DEFAULT' }

    before { subject.diff(actual_dsl).migrate }
    subject { client }

    it {
      delta = subject.diff(expected_dsl)
      expect(delta.differ?).to be_truthy
      expect(subject.dump).to match_ruby actual_dsl
      migrated, sql = delta.migrate(alter_extra: alter_extra, noop: true)
      expect(migrated).to be_truthy
      expect(sql).to match_fuzzy erbh(<<-SQL)
        CREATE  INDEX `idx_first_name` ON `employees` (`first_name`)  LOCK=DEFAULT  ALGORITHM=DEFAULT
      SQL
      delta.migrate(alter_extra: alter_extra)
      expect(subject.dump).to match_ruby expected_dsl
    }
  end

  context 'when add unique index' do
    let(:actual_dsl) do
      erbh(<<-ERB)
        create_table "employees", primary_key: "emp_no", force: :cascade do |t|
          t.date   "birth_date", null: false
          t.string "first_name", limit: 14, null: false
          t.string "last_name", limit: 16, null: false
          t.string "gender", limit: 1, null: false
          t.date   "hire_date", null: false
        end
      ERB
    end

    let(:expected_dsl) do
      erbh(<<-ERB)
        create_table "employees", primary_key: "emp_no", force: :cascade do |t|
          t.date   "birth_date", null: false
          t.string "first_name", limit: 14, null: false
          t.string "last_name", limit: 16, null: false
          t.string "gender", limit: 1, null: false
          t.date   "hire_date", null: false
          t.index  ["first_name"], name: "idx_first_name", unique: true
        end
      ERB
    end

    let(:alter_extra) { 'LOCK=DEFAULT, ALGORITHM=DEFAULT' }

    before { subject.diff(actual_dsl).migrate }
    subject { client }

    it {
      delta = subject.diff(expected_dsl)
      expect(delta.differ?).to be_truthy
      expect(subject.dump).to match_ruby actual_dsl
      migrated, sql = delta.migrate(alter_extra: alter_extra, noop: true)
      expect(migrated).to be_truthy
      expect(sql).to match_fuzzy erbh(<<-SQL)
        CREATE UNIQUE INDEX `idx_first_name` ON `employees` (`first_name`)  LOCK=DEFAULT  ALGORITHM=DEFAULT
      SQL
      delta.migrate(alter_extra: alter_extra)
      expect(subject.dump).to match_ruby expected_dsl
    }
  end

  context 'when drop index' do
    let(:actual_dsl) do
      erbh(<<-ERB)
        create_table "employees", primary_key: "emp_no", force: :cascade do |t|
          t.date   "birth_date", null: false
          t.string "first_name", limit: 14, null: false
          t.string "last_name", limit: 16, null: false
          t.string "gender", limit: 1, null: false
          t.date   "hire_date", null: false
          t.index  ["first_name"], name: "idx_first_name"
        end
      ERB
    end

    let(:expected_dsl) do
      erbh(<<-ERB)
        create_table "employees", primary_key: "emp_no", force: :cascade do |t|
          t.date   "birth_date", null: false
          t.string "first_name", limit: 14, null: false
          t.string "last_name", limit: 16, null: false
          t.string "gender", limit: 1, null: false
          t.date   "hire_date", null: false
        end
      ERB
    end

    let(:alter_extra) { 'LOCK=DEFAULT, ALGORITHM=DEFAULT' }

    before { subject.diff(actual_dsl).migrate }
    subject { client }

    it {
      delta = subject.diff(expected_dsl)
      expect(delta.differ?).to be_truthy
      expect(subject.dump).to match_ruby actual_dsl
      migrated, sql = delta.migrate(alter_extra: alter_extra, noop: true)
      expect(migrated).to be_truthy
      expect(sql).to eq 'DROP INDEX `idx_first_name` ON `employees` LOCK=DEFAULT  ALGORITHM=DEFAULT'
      delta.migrate(alter_extra: alter_extra)
      expect(subject.dump).to match_ruby expected_dsl
    }
  end
end